How can you fill a balloon with air without blowing it up? Read these steps.

　　1．Get a balloon, an empty soda-pop bottle, some baking soda, and some vinegar (醋).

　　2．Put two teaspoons of baking soda into a balloon.

　　3．Pour one inch of vinegar into the empty bottle.

　　4．Put the neck of the balloon tightly over the neck of the bottle.

　　5．Shake the bottle so that the baking soda will fall in.

　　6．In a few minutes, the balloon will begin to fill with air.

　　7．The baking soda and the vinegar mix together to form a gas. This gas fills the balloon.

1．Which step has a list of four things to use?

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2．Where do you put the baking soda?

[　　]

3．How much vinegar should you use?

[　　]

4．When do you shake the bottle?

[　　]

5．The baking soda and vinegar mix together to make ________ .

[　　]

阅读理解

　　Though chopsticks are used in many Asian countries. they have their beginnings in China. Chinese history says that the Chinese had chopsticks as far as the Xia Dynasty (朝代) (about 4, 000 years ago) In the Spring and Autumn period (时期)copper and iron chopsticks appeared . With the Han Dynasty lacquered (上漆)chopsticks came ,followed by gold and silver chopsticks still later .Today we have chopsticks made of plastics .The most expensive are made of part of tusks of elephants and hard green stone.

　　Chopsticks tell Chinese tradition in their way .In ancient (古代的)times the rich used hard green stone or gold chopsticks to show their wealth (富有).In history many kings used silver chopsticks to take their food to see if it was poisonous (有毒的).It was said that if it was ,the silver chopsticks would turn colour .Chopsticks are traditionally given to a daughter when she marries to show that they should have a son very soon ,for “Chopsticks”in Chinese is pronounced like “quick a son”!

　　Though chopsticks from Hangzhou, wooden chopsticks from Shanyang of Shanxi Province, and Beijing's chopsticks are well-known.

　　Many westerners , businessmen ,tourists put aside (一边)their knives and forks in favour (喜爱) of chopsticks in China

　　Chopsticks appeared in the old Chinese story: an old man teaches his sons a lesson by showing how he could easily break a single chopstick but not a number of them .In China chopsticks are connected with good luck .So on the country's New Year's Eve many families will lay out new chopsticks at dinners as a way of making requests for luck.

(1) Chopsticks have their beginnings in________ .

[　　]

(2) Chopsticks and iron chopsticks appeared in________ .

[　　]

(3) The history of chopsticks can tell us ________.

[　　]

A. something about Chinese food

B. nothing but how many kinds of chopsticks are used in China

C. about the lives of Chinese kings

D. much about Chinese way of life in the past

(4) Many Westerners in China like to use ________.

[　　]

A．chopsticks

B. their knives

C. their forks

D. chopsticks and knives and forks at the same time

(5)Chinese use chopsticks _________.

[　　]

A. to lift food to the mouth only

B. to teach others a lesson only

C. in many other ways besides taking food

D. in many other ways except except taking food

阅读理解

　　Though chopsticks are used in many Asian countries. they have their beginnings in China. Chinese history says that the Chinese had chopsticks as far as the Xia Dynasty (朝代) (about 4, 000 years ago) In the Spring and Autumn period (时期)copper and iron chopsticks appeared . With the Han Dynasty lacquered (上漆)chopsticks came ,followed by gold and silver chopsticks still later .Today we have chopsticks made of plastics .The most expensive are made of part of tusks of elephants and hard green stone.

　　Chopsticks tell Chinese tradition in their way .In ancient (古代的)times the rich used hard green stone or gold chopsticks to show their wealth (富有).In history many kings used silver chopsticks to take their food to see if it was poisonous (有毒的).It was said that if it was ,the silver chopsticks would turn colour .Chopsticks are traditionally given to a daughter when she marries to show that they should have a son very soon ,for “Chopsticks”in Chinese is pronounced like “quick a son”!

　　Though chopsticks from Hangzhou, wooden chopsticks from Shanyang of Shanxi Province, and Beijing's chopsticks are well-known.

　　Many westerners , businessmen ,tourists put aside (一边)their knives and forks in favour (喜爱) of chopsticks in China

　　Chopsticks appeared in the old Chinese story: an old man teaches his sons a lesson by showing how he could easily break a single chopstick but not a number of them .In China chopsticks are connected with good luck .So on the country's New Year's Eve many families will lay out new chopsticks at dinners as a way of making requests for luck.

(1) Chopsticks have their beginnings in________ .

[　　]

(2) Chopsticks and iron chopsticks appeared in________ .

[　　]

(3) The history of chopsticks can tell us ________.

[　　]

A. something about Chinese food

B. nothing but how many kinds of chopsticks are used in China

C. about the lives of Chinese kings

D. much about Chinese way of life in the past

(4) Many Westerners in China like to use ________.

[　　]

A．chopsticks

B. their knives

C. their forks

D. chopsticks and knives and forks at the same time

(5)Chinese use chopsticks _________.

[　　]

A. to lift food to the mouth only

B. to teach others a lesson only

C. in many other ways besides taking food

D. in many other ways except except taking food

　　He began to work at once. He didn't need to see Lippershey's glass. The idea was（8）________ for him, and very soon his glass was ready. He gave it a name “the telescope”(from the Greek（希腊）words for “far” and “see”). Lippershey could see（9）________ the land, but Galileo could see across the sky.

When it was ready, Galileo looked through it at the moon. He was（10）________ surprised to speak. He could see the moon's face clearly. Like his friend in Holland, he wanted to put out his hand and touch it.

1.　　   A. is making        B. has made　　   　　  C. makes　　      D. will make

2.　　   A. was walking      B. walked　　　　 　　 C. am walking     D. walk

3.　　   A. because　　     B. and　　　　   　　   C. so　　　　   D. but

4.　　   A. fell　　　　 　　 B. felt　　　　    　　  C. filled　　　　 D. falled

5.　　   A. to　　　　  　　 B. with　　　　        C. without　　     

D. for

6.　　   A. good　　        B. better　　　　  　　  C. best　　　　   D. far

7.　　   A. use　　         B. to use　　　　  　　 C. take　　　　   D. with

8.　　   A. easy　　    　　 B. difficult　　   　　    C. enough　　     D. good

9.　　   A cross　　        B. across　　　　      C. through　　    D. into

10.   A. very　　    　　 B. so　　　　　　 　　 C. quite　　       D. too